204023234537 has 2 divisors, whose sum is σ = 204023234538. Its totient is φ = 204023234536.

The previous prime is 204023234399. The next prime is 204023234587. The reversal of 204023234537 is 735432320402.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 121734001216 + 82289233321 = 348904^2 + 286861^2 .

It is a cyclic number.

It is not a de Polignac number, because 204023234537 - 2²² = 204019040233 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 204023234497 and 204023234506.

It is not a weakly prime, because it can be changed into another prime (204023234587) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 102011617268 + 102011617269.

It is an arithmetic number, because the mean of its divisors is an integer number (102011617269).

Almost surely, 2^204023234537 is an apocalyptic number.

It is an amenable number.

204023234537 is a deficient number, since it is larger than the sum of its proper divisors (1).

204023234537 is an equidigital number, since it uses as much as digits as its factorization.

204023234537 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 120960, while the sum is 35.

Adding to 204023234537 its reverse (735432320402), we get a palindrome (939455554939).

The spelling of 204023234537 in words is "two hundred four billion, twenty-three million, two hundred thirty-four thousand, five hundred thirty-seven".